使用方法：1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 .clearfix:after { content: ""; display: block; height: 0; clear: both; visibility: hidden; } /* IE6、7专有 */ .clearfix { *zoom: 1; } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 .clearfix:before, .……

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